trunc

The trunc() method truncates the decimal part of a number, returning only the integer part. Unlike floor(), it behaves the same for positive and negative numbers by simply removing the decimals.

Interactive example

Syntax

function trunc<
	GenericInput extends number,
>(input: GenericInput): number

Parameters

• input: The number whose decimal part you want to truncate.

Return value

The integer part of the given number (removes decimals without rounding).

See also

• round - Rounds to the nearest integer
• floor - Rounds down
• ceil - Rounds up

Sources

• MDN Web Docs - Math.trunc()